No addons I know of that do this, but in the base game UI you can get this by opening up the PvP window (L). At the top is the XP bar, and hovering over this will tell you <points earned this rank>/<points for next rank> just like when you hover over the main XP bar.
I actually found an answer myself. Harven's All Experience Bars give you an option to have any experience bar you want. I can just have the Alliance point skill bar.
It does exactly what I wanted. Plus gives me the option for other skill xp bars if I want.